• 척추신경추나의학회지
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• 제4권2호
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• pp.185-196
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• 2009

Objective: The purpose of this study is to investigate the effects of oriental medicine conservative treatment on patients who show symptoms at the legion opposed to that shown in Magnetic Resonance Image(MRI) findings. Subject & Method: Oriental medicine treatment such as acupuncture and herbs was applied to two patients who were diagnosed as lateral herniated intervertebral disc of lumbar spine via MRI but whose pain and muscular force attenuation were shown at the opposed lower limb, for measuring its effects. Results: As for the two cases, the patients were favored in the Visual Analog Score (VAS) and the Straight leg Raising(SLR) test after the oriental medicine conservative treatment. In one case, the muscular force in the lower limb was favored. Conclusion: Based on the results in this study, oriental medicine conservative treatment might be effective on patients who show symptoms at the legion opposed to that shown in MRI findings.

• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2002년도 Proceedings
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• pp.367-369
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• 2002

We have designed ramp profile excitation pulse based on the Shinnar-Le Roux (SLR) algorithm. The algorithm provides many advantages to pulse designers. The first advantage is the freedom of deciding the amplitudes, frequencies, and ripple sizes of stopband, passband, and transition band of pulse profile. The second advantage is the freedom of deciding the pulse phase, more specifically, minimum phase, linear phase, maximum phase, and any phase between them. The minimum phase pulse is the best choice in the case of 3D TOF, because it minimizes the echo time, which implies the best image quality in the same MR examination condition. In addition, the half echo technique is slightly modified in our case. In general, using the half echo technique means that the acquired data size is half and the rest part can be filled with complex conjugate of acquired data. But in our case, the echo center is just shifted to left, which implies the reduction of echo time, and the acquired data size is the same as the one without using the half echo technique. In this case, the increase of right part of data leads to improvement of the resolution and the decrease of left part of data leads to decrease of signal to noise ratio. Since in the case of 3D TOF, the signal to noise ratio is sufficiently high and the resolution is more important than signal to noise ratio, the proposed method appears to be significantly affective and gives rise to the improved high resolution angiograms.

• 인터넷정보학회논문지
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• 제15권1호
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• pp.13-27
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• 2014

Agile 방법론은 시간적 제약하에서도 효율적인 개발 프로세스로 빠르게 제품을 완성할 수 있는 방법으로 알려져 있다. 하지만 scrum, XP, DSDM 등과 같은 여타 Agile 방법들처럼 기능주도개발 (FDD) Agile 방법도 보안요소의 불가용성으로 인해 비판을 받고 있다. 이러한 이슈를 보다 자세히 살펴보기 위해 본 연구는 2001년부터 2012년사이에 나타난 연구들에 대한 체계적인 문헌연구를 수행하였다. 본 연구 결과, 현재 FDD 방법은 안전한 소프트웨어 개발을 부분적으로 지원하고 있는 것으로 나타났다. 하지만 안전한 소프트웨어 사용에 관한 상세한 정보가 문헌에 거의 나타나고 있지 않은 것으로 보아 이 분야에 대한 연구 노력은 거의 없어 보인다. 따라서 현재의 5단계 FDD 방법은 안전한 소프트웨어 개발에 충분하지 않음을 알 수 있고 결국, 본 연구는 FDD 방법에서 보안에 기반을 둔 새로운 수행 단계와 프랙티스가 제안될 필요가 있음을 보여준다.

• 대한통합의학회지
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• 제4권1호
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• pp.85-97
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• 2016

Purpose : The purpose of this study was to investigate the effects on the muscle thickness and contraction time using sound wave vibrator and swiss ball. Methods : This study was performed on 20 subjects. 20 subjects were divided into two groups; Lumbar stability exercise using sound wave vibrator exercise(n=10)(Group1), Lumbar stability exercise using Swiss ball exercise(n=10)(Group2). Both of the group performed the exercise 3 times a week for 5 weeks. The data was analyzed by the paired t-test to compare before and after difference of factors on each group and the Independent t-test to compare the between groups. Results : Both group were increased muscle contracture time on Straight Leg Rise(SLR) test (p<0.05). It means both group were increased lumbar stability. However, by comparing the between groups, there were no statistically significant difference about muscle thickness of multifidus and transverse abdominal.(p>0.05). Conclusion : As a result of this study, we suggest that the sound wave vibrator may be effective exercise tool for lumbar stability exercise like a swiss ball.

• 대한한방내과학회지
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• 제40권6호
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• pp.1248-1258
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• 2019

Objective: The purpose of this study was to report the radiological and symptomatic changes in a patient with acute herniated lumbar disc due to coughing, treated with megadose pharmacopuncture and combined Korean medicine. Methods: MRI examination diagnosed an acute lumbar disc herniation by coughing. We performed a combination treatment of megadose pharmacopuncture and integrated Korean medicine. NRS, ODI, EQ-5D, SLR test, and big toe extension test were checked on admission, after two weeks, on discharge, and after four months to confirm symptom improvements. Results: In the acute stage of lumbar intervertebral disc rupture, megadose pharmacopuncture combined with Korean medicine treatment showed improvement in NRS, ODI, EQ-5D, SLRT, and big toe extension tests. In addition, absorption of the herniated intervertebral discs was observed through an MRI scan on discharge. Conclusions: For patients with herniated lumbar disc acutely deteriorated by coughing, a combination of megadose pharmacopuncture with Korean medicine treatment may be a solution.

• 대한정형도수물리치료학회지
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• 제5권1호
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• pp.39-51
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• 1999

Background and Purpose. Objective measurements of hamstring muscle length are needed to quantify baseline limitations and to document the effectiveness of therapeutic interventions. Several indirect clinical tests for measuring hamstring muscle length are available, but influence of their test procedure is not well documented. The purpose of this study were 1) to describe hamstring muscle length as reflected by use of six tests(active straight leg raising(ASLR), passive straight leg raising(PSLR), passive straight leg raising with the lower back flat(PSLRB), active knee extension(AKE), passive knee extension(PKE), hip joint angle(HJA). 2) to examine the correlation among the tests. Subjects, Sixty subjects(30 men. 30 women) ranging in age from 18 to 25 years(mean 20.2 years) and with no limitation hamstring flexibility and no neurological and orthopedical problems. Methods. All subjects performed six tests. A inclinometer was used to determine the end point of range of motion. HJA was measured using an inclinometer placed over the sacrum. PSLRB were tested PSLR with the low back flat and the opposite thigh slightly flexed and support on pillows. Results, A mean ASLR value of 85.9 degrees, PSLR value of 99.9 degrees, PSLRB value of 109.8 degrees, AKE value of 77.2 degrees PKE value of 83.1 degrees and HJA value of 73.0 degrees were obtained for all subjects. A dependent t-test showed significant difference between the angles of ASLR and PSLR(p<0.001). There was a significant difference between the angles of PSLR and PSLRB(p<0.001). There was a significant difference between the angles of AKE and PKE(p<0.001). The highest correlation was between PSLR and PSLRB(r=0.915, p<0.001). All SLR tests were significants related(p<0.001), as well as AKE and PKE(p<0.001). The lowest correlation was between PKE and HJA(r=0.171. p>0.05). Conclusion and Discussion. The results indicated that the hip flexion angles for ASLR, PSLR and PSLRB were a difference, and the knee extension angles for AKE and PKE were a difference.

• 대한정형도수물리치료학회지
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• 제24권1호
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• pp.77-83
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• 2018

Background: The purpose of this study is to investigate that effect of manual therapy using pelvic compression belt on hip abductor strength and balance ability in total knee replacement (TKR) patients. Methods: The subjects consisted of twenty two post-TKR patients. Participants were randomly assigned to a pelvic belt group (n=11) and a placebo group (n=11). All participants underwent manual therapy including range of motion exercise, soft tissue mobilization around knee joint, strengthening exercise (Quad set, SLR, sidelying hip abduction, standing hamstring curls, sitting knee extension, step-up, wall slide to $45^{\circ}$ knee flexion). Manual therapy was executed five times a week for 2 weeks. Outcome measures included hip abductor strength by using Biodex system 4 pro, anterior to posterior balance, medial to lateral balance, total balance by using Biodex balance system SD. Results: After the completion of the manual therapy, hip abductor strength was showed statistically significant improvements in pelvic belt group (p<.05). Anterior to posterior balance, medial to lateral balance, total balance were showed statistically significant improvements in pelvic belt group and placebo group (p<.05). There was a statistically significant difference between the two groups in hip abductor strength and there was no statistically significant difference in balance. Conclusions: This results suggest that manual therapy using pelvic compression belt has could be used for selective muscle activation of the hip abductor muscle and has useful in hip abductor strength and balance ability in TKR patients.

• 대한한의학회지
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• 제28권4호
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• pp.86-94
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• 2007

Objective : Kuesu point is a newly discovered point, it is located in 3-cun from the centre of sacrum laterally, paralleled to the 4th foramen on the sacrum. This controlled trial was to evaluate the superior effect of Kuesu point on back pain which radiated to lower extremities. Methods : Randomized Controlled Trial (RCT) and Single Blind in patient was designed. Patients (n=31) were randomized to two groups, Kuesu-point acupuncture group (Group A, n=16) and non Kuesu point acupuncture group (Group B, n=15). Group A was acupunctured on B25 (大腸兪), B26 (關元兪) and B60 (崑崙) with Kuesu point. Group B was acupunctured on the same points without Kuesu point. The clinical subjects were female patients. Beside acupuncture, the other therapies were excluded. Clinical period was three weeks total. Each group was treated 4-5 times per week for 3 weeks. The outcome measurements were The Estimation Index of Backache (quality of life), Pain Rating Scale (pain intensity) and other physical examinations (ROM, SLR, etc.). Results : 31 patients (Group A: n=16, Group B: n=15) were Randomized, 6 of them dropped out. Eventually 25 patients (Group A: n=15, Group B: n=10) were included in the analysis. Group A acupunctured on Kuesu point scored more significant Estimation Index of Backache and lower PRS (Pain Rating Scale) than Group B acupunctured without Kuesu point (p=0.003/2). It turned out that the group acupunctured on Kuesu point show meaningful high improvement index. And other examination's results showed that the treatment effects of Group A are twice as better as Group B. Conclusion : These results suggest that Kuesu point acupuncture was more effective on lower back pain and improved the life quality of patients, being compared with non Kuesu point acupuncture.

• Journal of Astronomy and Space Sciences
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• 제30권1호
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• pp.49-58
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• 2013

ARGO-M is a satellite laser ranging (SLR) system developed by the Korea Astronomy and Space Science Institute with the consideration of mobility and daytime and nighttime satellite observation. The ARGO-M optical system consists of 40 cm receiving telescope, 10 cm transmitting telescope, and detecting optics. For the development of ARGO-M optical system, the structural analysis was performed with regard to the optics and optomechanics design and the optical components. To ensure the optical performance, the quality was tested at the level of parts using the laser interferometer and ultra-high-precision measuring instruments. The assembly and alignment of ARGO-M optical system were conducted at an auto-collimation facility. As the transmission and reception are separated in the ARGO-M optical system, the pointing alignment between the transmitting telescope and receiving telescope is critical for precise target pointing. Thus, the alignment using the ground target and the radiant point observation of transmitting laser beam was carried out, and the lines of sight for the two telescopes were aligned within the required pointing precision. This paper describes the design, structural analysis, manufacture and assembly of parts, and entire process related with the alignment for the ARGO-M optical system.

• 척추신경추나의학회지
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• 제9권1호
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• pp.15-26
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• 2014

Objectives : The purpose of this study was to evaluate the effect of Korean medicicine treatment in patients with Spondylolisthesis and Lumbar Herniated Intervertebral Disc(HIVD). Methods : This clinical study was carried out on 62 patients who were diagnosed as spondylolisthesis and lumbar herniated intervertebral disc(HIVD) on L-spine X-ray and L-spine magnetic resonance imaging(MRI), who had been admitted from Feb. 2013 to Apr. 2014. All of 62 patients were treated with acupuncture, chuna treatment and herbal medicine during the whole admission period. Numerical rating scale(NRS) was used to evaluated the effectiveness of the oriental medical treatment. Results : 1. Distribution showed female predominance in general. 2. Degenerative type is the most common in this study. 3. In the duration of symptoms, the largest group was" Subacute"(32.26%). 4. Almost of patients had radiation pain, but in SLR test and valsalva test, more patients had no significant sign. 5. Spondylolytic type involved the 5th lumbar vertebra in 80% and degenerative type involved the 4th lumbar vertebra in 53.84%. 6. Most of case were grade 1(93.54%) in degree of slipping. 7. By the oriental medical treatment, NRS reduction in spondylolytic spondylolisthesis, was better than degenerative spondylolisthesis. Conclusions : The result of treatment by Korean medical is satisfactory for the tretment of spondylolisthesis.